You will NOT see a CRJ or any other Pinnacle plane with their logo. You may see "Operated By Pinnacle Airlines" on the front or rear of the plane but if they fly for NWA Airlink, they will be in those colors or their new services will be in the mainline colors. Just like United Express is not an airline but a group of carriers flying for United and in United colors, etc.
I retired from northwest airlines. at that time pinaccle was a feeder for us. Not sure if that is still so. But all their planes are fairly new. I flew them twice a week to Oklahoma and back where my family then lived (& now I do also). Great planes, quiet, always full. Low wages to their employees.